Anyone help me here? I've got to about 3 secs left but couldn't hold it for the rest. It may be I have a bad combat strategy or it may be something else I don't know but will appreciate all the help I can get.

Iv'e found that if you get into one of the vehicles and block the droid's way to the refinery, you can most likely guard it for the four minutes. Dont bother about all the droids on foot; as the wookies and your fellow teammates will destroy them. Worry mainly about the oncoming vehicles from the CIS, oh and why is this in BF I??

If you are trying to do the defend the refinery section, I found that you can repair the main door if it is destroyed. Just be an engineer and fusion cut the panel to the left of the main door. That should keep all vehicles out.